I think best to fold the winning hand when you're close to the money and let someone else take them out. Then you atleast get your money back. Specially when there are 4 players left and top 3 pays. My latest was like A 10 vs A 6...god damn. I'll post the exact soon.

How the hell am I supposed to have a good ROI if since I started playing a year ago I keep getting this over and over and over and over again?

Sorry S happens sometimes. These will always stick out in your mind while the times you win these are forgotten. Yes you are a nice favorite in most of these but your opponent isn't as bad off as you would like to think.

How the hell am I supposed to have a good ROI if since I started playing a year ago I keep getting this over and over and over and over again?

That is all completely standard. You will be on the other end of it at some point it all evens out. The only difference is you will probably suckout those same 7 times over a much larger sample than the one displayed here.